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PHP 7.3 reached end of support in December 2021 and Adobe Commerce 2.3.x reaches end of support in September 2022. You may want to consider planning your upgrade now to Adobe Commerce 2.4.x and PHP 7.4.x to help maintain PCI compliance.
Magento_BundleImportExport module implements Bundle products import/export functionality.
This module is designed to extend existing functionality of Magento_CatalogImportExport module by adding new product type.